I have an 03 coupe. Wheels are 18x9.5 all around. Minimal drop on Tein H tech springs. Prob just under an inch. I'm getting horrid inner tire wear on the front. A little in the rear. With such a small drop I was hoping to avoid a front camber kit. Last alignment the tech said he couldn't figure out how to get my car back into spec. Anybody with a similar set up having issues with inner tire wear? My guess is bad toe in because im not that low. Thanks

 

Post your alignment report.

 

I'm on the S-techs (a little lower) and my tire wear is good. I did initially get some inner edge wear upfront but after changing the comp rod bushes (looked cracked up) to poly the wear reduced significantly. I had a busted lower ball joint boot for a while so I replaced that ball joint and the inner edge wear completely went away - just need to do the other side now.

This is with oem alignment specs but without any camber arms, so the front and rear camber is a bit more negative than oem and the caster is also slightly more. I have been experiencing some inner edge wear on the left rear now though, but it's nothing to do with the ride height because the right side is perfectly fine. Something must be allowing the toe to shift excessively while rolling.

For inner edge wear, it's generally a toe problem. If the alignment is all in check for toe then you need to look at the suspension components which - if compromised - would allow the toe to move out of spec. Usually comp rod bushes, lower control arm bushes, lower ball joints, tie rod ends or bent arms.

 

Jesus, I can't count how many times this has been stated: if you lower your car ANY AMOUNT you need adjustable control arms and rear eccentric toe bolts. Hell, even dead stock you will benefit from front adjustable arms. You cannot avoid reality.

 

After "Alignment"

Left Front camber -1.3 Right front -1.6
left Caster 9.1 right caster 9.7
left toe 0.04 right toe 0.03
total toe 0.07
steer ahead 0.00

left rear camber -2.7 right rear camber -1.6
left toe 0.11 left toe 0.10

total toe 0.21

 

You need a camber kit clearly, but your bushings are shot or your rear left arms are bent, for sure.